The Cool Sleep System
Not sure of your size? View the size guide — most women take their usual UK size.
Free 60-day returns · Free UK delivery over £50 · Dispatched within 24 hours
Everything that touches you at night, working together.
Cooling one thing helps. Cooling the whole bed is what actually changes the night. The Cool Sleep System brings together all three Cool Bloom pieces at a saving of £16 against buying them separately.
What's included
- The Bloom Pyjama Set — 95% bamboo viscose, in your size and sleeve length (worth £59)
- The Bloom Pillowcase Set — two cool-touch bamboo pillowcases (worth £22)
- The Cooling Pad — phase-change pad, standard size, no electricity needed (worth £24)
Why the three together
The pyjamas move moisture off your skin. The pillowcases stop your face and hair from sitting against damp, warm cotton. The pad gives you a genuinely cool surface to turn onto when you wake. Each one covers a gap the others cannot.
Size & fit
The size you choose applies to the pyjamas — the pillowcases and pad are one size. Take your usual UK dress size. The fit is relaxed, cut to skim rather than cling, with an elasticated waist and soft tie that gives either way if you are between sizes.
Garment measurements below, taken flat and doubled. Body measurements and how to measure yourself are on the Size Guide.
| Size | Top, bust | Trouser waist (relaxed) | Trouser hip |
|---|---|---|---|
| UK 8–10 (S) | 99 cm | 69 cm | 109 cm |
| UK 12 (M) | 102 cm | 71 cm | 112 cm |
| UK 14 (L) | 109 cm | 79 cm | 117 cm |
| UK 16 (XL) | 117 cm | 84 cm | 119 cm |
| UK 18 (XXL) | 124 cm | 94 cm | 122 cm |
Ordering with confidence
Free 60-day returns on the whole set · Free UK delivery · Dispatched within 24 hours
Why it works
The fabric is the whole point
Cotton soaks up moisture and holds it inside the fibre, so it stays damp against you. Polyester barely absorbs anything but traps heat with nowhere to go. Bamboo viscose does the one useful thing: it moves moisture out and lets warmth escape.
| Cotton | Polyester | Our bamboo viscose | |
|---|---|---|---|
| Absorbs moisture | Yes — and holds it | Barely | Yes — and releases it |
| Dries quickly | Slowly | Quickly | Quickly |
| Lets heat escape | Moderately | Poorly | Well |
| Against warm skin | Becomes heavy | Can feel slick | Stays light and dry |
Size & fit
Order your usual size
Cut relaxed through the body, with a little shape at the side seam. The trousers sit at the natural waist on an elasticated band with a soft tie, so there is give either way.
Between sizes? Size down for a closer fit, or stay where you are for more room. Neither is a mistake — returns are free either way.
Sixty days to decide
Sleepwear is something you have to actually sleep in before you know. So wear it, wash it, give it a fortnight of real nights.
If it is not right, send it back free within 60 days. We will not ask you why.
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Complete the set
Before you order
Questions we get about this
How does it actually feel?
Fluid and smooth rather than fluffy — closer to a fine jersey than to brushed cotton. It hangs away from the body instead of clinging, which is most of why it feels cooler.
Will it shrink or go bobbly?
Wash cool and keep it out of a hot dryer and it holds its shape. The elastane helps the surface recover, so it stays smooth. Wash inside out and away from rough fabrics.
Can I use fabric softener?
No — softener coats the fibre and blocks the wicking. It is the fastest way to undo what you paid for. The fabric is already soft.
What size should I order?
Your usual UK size. Between sizes, size down for a closer fit or stay where you are for more room. Full measurements on the Size Guide.
How quickly will it arrive?
Dispatched within 24 hours on working days. UK standard delivery is 3 to 5 working days, free over £50. See Shipping & Returns.
What if I do not get on with it?
Sixty days to send it back, free, with no explanation needed. We would rather take the risk out of it than argue with you about it.