As the days lengthen into spring and British dawn pushes back towards 4am, the bedroom blind that worked well enough in December suddenly fails. Whether you're sleeping around shifts, settling young children, or simply waking earlier than you'd like, the choice of blind matters more in a bedroom than in any other room. This guide covers the key decisions - how much darkness you actually need, how to keep light from bleeding around the edges, and which type of blind suits your window and style - then explains why we chose each of three quite different picks.

What blackout actually means

The word "blackout" describes the fabric, not the room. A blackout-rated fabric blocks light transmission through the material itself; if you hold it up to a bright window you should see nothing glow through it. That is meaningfully different from a dimout fabric, which significantly reduces light but lets a warm haze through, or a light-filtering fabric, which obscures detail while letting diffuse daylight pass.

The practical catch is that even a genuine blackout fabric leaves gaps. Light enters around the edges of any blind - between the fabric and the recess wall, and across the bottom if the drop falls short. For genuine darkness you need more than blackout fabric: an outside-recess fitting that overlaps the wall on all sides, or side channels that grip the fabric edges, or a combination of the blind with lined curtains. A blackout roller fitted inside the recess will eliminate direct light through the glass but leave a strip of dawn creeping in at each side.

Dimout is often the better choice than it sounds. For many adults, especially those with curtains already on the window, reducing light by 90% is enough for uninterrupted sleep. Dimout fabrics also tend to look lighter and less heavy than true blackout backings, which matters when you want the room to feel open in the daytime.

Day-and-night blinds sit in their own category. These alternate opaque and sheer horizontal stripes that you can align for near-privacy or stagger for diffused light. They're not blackout in any position - when the opaque stripes line up there's still some light transmission around the stripe edges. Their value in a bedroom is flexibility: a graduated transition between "morning light gently let in" and "reasonable privacy" rather than a binary open-or-shut decision.

What to look for

How much darkness you actually need. If you or a partner sleeps in the daytime, works shifts, or is a very light sleeper, genuine blackout fabric is worth prioritising. For most adults in a standard evening-to-morning sleep pattern, dimout combined with curtains is adequate and gives a softer daytime look. Children's bedrooms, particularly for toddlers, benefit most from true blackout - the difference in nap reliability is real.

Fitting and edge control. Inside-recess fitting looks cleaner but leaves the largest edge gaps. Outside-recess fitting (fixed to the wall above the window) covers more of the gap but adds visible hardware on the wall. For UPVC double-glazed windows, a Perfect Fit frame clips into the rubber gasket around the glazing unit and effectively eliminates edge gaps without drilling through the frame - the most practical solution for renters or anyone who doesn't want screw holes in UPVC.

Cord safety. UK regulations require all blinds sold for domestic use to be cord-safe by design - this covers breakaway connectors, cord cleats, wand operation, and cordless mechanisms. For any room where children or pets are present, cordless or wand-operated is the standard expectation. The difference in operation is small; the safety benefit is substantial.

Type trade-offs between roller and roman. A roller blind is the straightforwardest choice: one piece of fabric, low stack when raised (it wraps neatly onto the tube), and the broadest range of fabric options from sheer to blackout. A Roman blind folds into horizontal pleats as it raises, creating a soft concertina stack at the top of the window. Romans look more decorative - the fabric drapes when down rather than lying flat - and they suit traditional, country, or heavily patterned fabrics far better than rollers do. The cost of that softer look is a more visible stack when raised, slightly more maintenance, and a generally higher price per blind.

Colour and pattern durability. Bedrooms take less sun than living rooms for most of the year, but south- and west-facing windows can fade fabrics over time. Polyester holds colour better than natural fibres under UV. If you're choosing a strongly coloured or heavily patterned fabric, it's worth knowing whether your window gets direct afternoon sun.

Measuring and fitting tolerance. Made-to-measure blinds are cut to your specified dimensions, within the retailer's published minimum and maximum range. When measuring for an inside-recess fit, take the narrowest point of the recess width at three heights and use the smallest measurement - recess walls are rarely perfectly parallel. Retailers typically advise a deduction of a few millimetres to ensure the blind operates freely; check the specific retailer's guidance for the range you're ordering.

Our picks

Best blackout

Trinity (Blackout)

at 247 Blinds

A blackout-lined Trinity roller from 247 Blinds for a dark bedroom.

from £9.72 in 42 colours

Read review →
Best for light control
Enjoy Roller

Enjoy Roller

at Blinds 2go

A day-and-night roller from Blinds 2go for graduated morning light.

from £12.92 in 45 colours

Read review →
Best for style
William Morris Roman

William Morris Roman

at Blinds 2go

William Morris archive prints in a soft roman fold from Blinds 2go.

from £24.62 in 144 colours

Read review →

Pick details

Best blackout

Trinity (Blackout)

at 247 Blinds

A blackout-lined Trinity roller from 247 Blinds for a dark bedroom.

from £9.72 in 42 colours

Read review →

The Trinity (Blackout) Roller Blind from 247 Blinds is our pick for bedrooms where darkness is the primary requirement. The retailer classifies this fabric as blackout - meaning the material itself is opaque against a light test - rather than heavy dimout, which matters if you're buying specifically to darken the room.

What makes it stand out in its category is the breadth of the colour range: 41 finishes spanning neutrals, blues, greens, greys, pinks, and bolder options like Cosmic Black, Poppy Red, and Prussian Blue. A blackout roller doesn't have to be beige. Picking a colour you'd actually want to live with - particularly in a bedroom where the blind will be a visual presence even when raised - is a real consideration, and the range here gives genuine choice rather than the token palette of a more limited range.

As a roller blind it stacks neatly when raised and the mechanism is straightforward to operate. For the darkest possible result, fitting outside the recess (overlapping the wall on all sides) will reduce edge-light more than an inside-recess fit. The price starts at under £10, though larger or less common sizes will cost more; the retailer's price grid by dimensions is worth checking before you measure.

Compared to our style pick, the Trinity is a functional choice rather than a decorative one. The fabrics are purposeful plain colours and textures rather than printed patterns. For a bedroom where the blind is background rather than focal point, that's an asset.

Best for light control
Enjoy Roller

Enjoy Roller

at Blinds 2go

A day-and-night roller from Blinds 2go for graduated morning light.

from £12.92 in 45 colours

Read review →

The Enjoy Roller Blind from Blinds 2go is a day-and-night (or vision) blind - two alternating layers of opaque and sheer horizontal stripes that slide past each other as you adjust the chain. It's our pick for bedrooms where the priority isn't maximum darkness but rather graduated, controllable light.

A day-and-night blind is not blackout in any configuration, and it's worth being clear about that before choosing one for a bedroom. When the opaque stripes align you get meaningful privacy and significant light reduction, but not the near-total darkness of a blackout roller. What you get instead is adjustment: morning light can come in gradually without the blind being open or closed, which is a different and sometimes more appealing experience than the binary switch of a standard roller.

The 19 available finishes lean neutral - Light Grey, City Grey, Iron Grey, Mist, Cream, Almond, Sandy Beige, Soft White, and similar - with a few warmer woods (Dark Wood, Honey Oak, Barley) and one deeper navy and teal. That palette suits the contemporary bedroom aesthetic well. The striped texture of a day-and-night blind has its own visual character when down - more dimensional than a flat roller - which some find an advantage.

This pick sits between the pure-function Trinity and the decorative William Morris roman. It's the pick for someone who wants the daytime versatility of graduated light control alongside a clean, contemporary look. Anyone needing genuine blackout for sleep should look at the Trinity first.

Best for style
William Morris Roman

William Morris Roman

at Blinds 2go

William Morris archive prints in a soft roman fold from Blinds 2go.

from £24.62 in 144 colours

Read review →

The William Morris Roman Blind from Blinds 2go is our pick for bedrooms where style and character are as important as function. It uses archive prints from the William Morris collection - Acanthus, Willow Bough, Pimpernel, Brother Rabbit, Blackthorn, and many others - applied to a roman blind construction that folds into soft horizontal pleats when raised.

The range is the most extensive of the three picks: 66 finishes, including both standard prints and a subset of velvet-based colourways (the Honeysuckle and Tulip Velvet range adds a tactile depth that photographs can't fully convey). The pattern vocabulary is distinctly Arts and Crafts - botanical, detailed, and dense - which means it either suits your existing bedroom aesthetic or it doesn't; there's not much middle ground. If you're decorating a room with strong reference to Victorian, country, or maximalist interiors, the range offers considerable depth. For a minimal or contemporary bedroom, the Enjoy or Trinity picks are more appropriate.

As a Roman blind, the William Morris folds up as a stack of horizontal pleats at the top of the window when raised, exposing more of the patterned fabric in the process. When down, the fabric hangs flat with the full pattern visible. Romans sit slightly further from the glass than a roller on the same window, which can matter in a shallow recess; check the fitting depth before ordering.

The price starts higher than either roller pick - made-to-measure Roman blinds carry a fabric and manufacturing cost premium - and the complexity of the print means the pattern layout on your specific window will depend on the cut. Blinds 2go doesn't publish prices per dimension on the main range page; the retailer's quote tool will give exact pricing by your measurements.

For a bedroom that already has a visual style worth investing in, this pick rewards the choice. For a bedroom where you're primarily solving a light problem, the Trinity or Enjoy blinds are more direct solutions.

What we didn't include

Roman blinds with blackout or dimout lining exist and can combine the decorative softness of a roman with meaningful light reduction. We didn't include a lined-roman pick here because the three picks already span the main decisions well, and adding a fourth overlapping category would introduce more noise than clarity.

Cellular and honeycomb blinds offer the best thermal insulation of any blind type, making them worth considering for bedrooms with older glazing or significant heat loss. They're a different buying decision to a standard fabric blind - more focused on energy performance than either darkness or style - and they suit that function better than any of our three picks. We excluded them because this guide is aimed at the more common bedroom blind decision, not the specialist thermal case.

Venetian blinds achieve near-blackout via slat closure and give precise light-angle control via tilt. In a bedroom they can work well, particularly in aluminium or faux-wood finishes that are easy to clean. We omitted them because the care burden - dusting each slat - is more significant than with fabric blinds, and the picks above cover the main light-control decision points without that trade-off.

Ready-made off-the-shelf sizes are available from most retailers and are cheaper than made-to-measure. All three picks above are made-to-measure ranges. The guide focuses on made-to-measure because it's the version that gives accurate dimensions for your specific window, which matters more in a bedroom - where edge-gap control and drop accuracy affect function - than in a decorative context.

Price by your window

Each of the three picks is priced made-to-measure, so the cost depends on your window dimensions. The Trinity starts from under £10 for smaller sizes; the Enjoy and William Morris ranges start higher. Use the price widget on each pick's page to enter your width and drop and see the exact figure before measuring.