Most bedside lamps in British bedrooms are brighter than the task requires and cooler in colour than the hour suggests. The useful range for a lamp intended for reading in bed before sleep sits broadly between 200 and 450 lumens delivered at the page, with a warm colour temperature in the region of 2200K to 2700K.<\/p>\n
We want to be straightforward about the limits of what can be claimed here. We have not conducted sleep measurement in households, and no national dataset records bedside lighting levels or their effect on sleep in UK bedrooms. What can be stated precisely is the lighting specification: lumen output, colour temperature, beam direction, shade behaviour and the geometry of where a lamp sits relative to the pillow.<\/p>\n
Since the move away from incandescent bulbs, lumens rather than watts describe output, and that has been a useful clarification. It is still an incomplete one for a bedside lamp, because the figure on the box describes the bulb, not the light landing where you need it.<\/p>\n
Three things intervene. Distance reduces illuminance sharply as the lamp moves further from the book. Shade material absorbs and redirects: a lined fabric shade or an opaque metal one throws a defined pool downwards, while a light linen shade releases much of the output sideways into the room. Direction determines whether that pool falls on the page or on the wall behind the headboard.<\/p>\n
The practical consequence is that a nominally modest bulb in a well positioned, directional lamp reads better than a high output bulb in a shade that scatters light everywhere except onto the page. When two people share a bed, directionality also decides whether one can read while the other sleeps.<\/p>\n
Colour temperature is a specification, not an opinion. A 2200K source is deep and amber, 2700K is the familiar warm white of a traditional bulb, 3000K is a cleaner warm tone, and anything at 4000K and above moves towards neutral and cool white.<\/p>\n
For a bedroom used in the hour before sleep, warmer sources are the conventional and sensible choice. They read as low and restful, and they contrast appropriately with the brighter, cooler lighting used elsewhere in the home during the day. NHS guidance on sleep hygiene recommends keeping the bedroom dark and restful, and a warm, dimmable, downward directed bedside light is the straightforward way to do that without losing the ability to read.<\/p>\n
Tunable lamps that shift colour temperature are useful in a bedroom that also serves as a dressing area or a workspace, because the same fitting can provide a cooler light in the morning and a warm one at night. In a bedroom that is only a bedroom, a fixed warm source and a dimmer achieves the same result more simply.<\/p>\n
Different bedside activities need different amounts of light, and the mistake most often made is specifying a single lamp for the brightest of them. The table below sets out lighting specification against use. The figures describe lamp output ranges commonly available, not measured household readings.<\/p>\n
| Use<\/th>\n | Indicative lamp output<\/th>\n | Colour temperature<\/th>\n | Light direction<\/th>\n<\/tr>\n<\/thead>\n |
|---|---|---|---|
| Reading a printed book in bed<\/td>\n | Around 300 to 450 lumens<\/td>\n | 2700K<\/td>\n | Directional, downwards onto the page<\/td>\n<\/tr>\n |
| Low level evening light before sleep<\/td>\n | Around 100 to 200 lumens<\/td>\n | 2200K to 2700K<\/td>\n | Diffused, shade directed<\/td>\n<\/tr>\n |
| Night time navigation, getting up<\/td>\n | Under 100 lumens<\/td>\n | 2200K<\/td>\n | Downwards, floor level if possible<\/td>\n<\/tr>\n |
| Dressing or applying make up at the bedside<\/td>\n | Around 600 to 800 lumens<\/td>\n | 3000K to 4000K<\/td>\n | Even, from both sides of the face<\/td>\n<\/tr>\n |
| Bedroom used for occasional desk work<\/td>\n | Around 500 to 800 lumens task light<\/td>\n | 3500K to 4000K<\/td>\n | Directional onto the work surface<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n A single dimmable lamp with a warm source covers the first three rows comfortably. The last two need a separate light, because pushing a bedside lamp to that output turns it into a room light with all the glare that implies.<\/p>\n Geometry decides comfort<\/h3>\nWhere the lamp sits matters as much as what it emits. The bottom of the shade should generally fall at around eye level for someone sitting up in bed, which for most beds places it roughly 50cm to 60cm above the mattress surface. Too high and the bulb is visible under the shade, producing glare directly into the field of view. Too low and the pool of light falls on the bedside cabinet rather than on the book.<\/p>\n That in turn depends on the height of the bedside cabinet. A cabinet whose top surface sits level with or slightly above the mattress top is the usual target, and the lamp height is then chosen to suit. Where cabinet and lamp are bought separately without this check, the combination frequently ends up too tall.<\/p>\n Our modern table lamps UK<\/a> range covers the output and shade types described above, and the pairing with a unit from our bedside cabinets UK<\/a> selection is worth planning as a single decision rather than two.<\/p>\n In a small UK bedroom, the bedside cabinet surface is scarce. It has to hold a phone, a glass of water, a book, possibly a clock, and a lamp with a base of 15cm or more takes a meaningful share of it.<\/p>\n A wall mounted reading light removes that conflict entirely, gives better control of direction because it can be angled at the page, and keeps the cable off the surface. The cost is flexibility: the position is fixed, and installation requires a wired fitting or a discreet surface mounted cable run. Where a permanent fitting is practical, our wall lights UK<\/a> range is generally the better answer in a room under about 3m across.<\/p>\n |