This is the 91cm version, and the shorter bed actually sits higher — 20cm off the ground rather than 18cm — which means a little more air moving underneath. That gap is the whole point of an elevated bed: a dog loses heat through its belly and paws, and a taut mesh sling with a breeze passing under it does more for an overheating dog than any amount of cushioning.

The canopy is water- and UV-resistant, giving shade on a hot day and cover in a shower, which is what lets the bed live outside on a patio rather than being carried in and out. The steel frame takes a large dog without flexing, the mesh unclips for washing, and it packs into the supplied bag for camping, the beach or a caravan.

• Bed surface 91cm long x 76cm wide, 20cm off the ground
• Overall height 89cm with the canopy up
• Washable breathable mesh sleeping surface
• Water- and UV-resistant canopy
• Steel frame; travel bag included
• For medium and large dogs to 30kg and under 60cm in body length

Which size to choose. The 60cm body-length limit here is the number that matters, not the weight — measure along the spine while your dog is standing. If they are longer than 60cm, take the 106cm version instead; a dog whose back end hangs off the mesh will simply stop using it.

Who it's for: Medium and large dogs who struggle in summer heat, gardens and patios, and anyone camping with a dog who otherwise lies on hot ground.