(Image credit: Future)

Hot summer nights are coming, and if you're already dreading their impact on your sleep then a cooling mattress could be your wisest purchase. Now is a good time to buy too, as the Avocado Green mattress, now $2,039 for a queen with 15% off at Avocado , is on sale. We awarded this supportive organic bed full marks for cooling comfort and recommend it as 'hot-sleeper safe'.

The Avocado is our top-rated organic mattress and when it comes to full-body support, it rivals even the best mattresses you can buy online . It's also ideal for summer, thanks to a breathable build that banishes night sweats.

Sleep cool on hot summer nights

(Image credit: Michele Ross)

Summer is on the horizon and I've already noticed the effect of warmer nights on my sleep.…