Danny Green / Hazel Dormouse (Muscardinus avellanarius) hibernating amongst leaves and acorns. Captive. Leicestershire, UK, October.

Ingo Arndt / Fat dormouse in flowering tree {Glis glis} Germany

Ingo Arndt / Fat dormouse in oak tree {Glis glis} Germany

Kerstin Hinze / Juvenile Forest dormouse (Dryomys nitedula) on a Rowan ash (Sorbus aucuparia) branch, with berries, Captive, occurs in Eastern Europe and Western Asia.

David Kjaer / Common Dormouse (Muscardinus avellanarius) sleeping on leaves. Bentley Wood, Wiltshire, May.

Andy Sands / Dormouse (Muscardinus avellanarius) asleep in old Blackcap nest. Captive. UK, September.

Andy Sands / Dormouse (Muscardinus avellanarius) climbing among berries of Black Byrony. Captive. UK, September.

Ann & Steve Toon / Common dormouse (Muscardinus avellanarius)torpid, in captive breeding programme, UK

Colin Varndell / Hazel Dormouse (Muscardinus avellanarius) hibernating, Dorset, UK

Stephen Dalton / Dormouse {Muscardinus avellanarius} on Bryony berries, UK

Stephen Dalton / Dormouse {Muscardinus avellanarius} jumping from rose branch, UK

Kim Taylor / Common dormouse (Muscardinus avellanarius) hibernating in nest. Captive, UK