Conservationists say urgent action is needed to help save one of our most endearing - but endangered - wild animals.
Hazel Dormice have vanished from much of our countryside. Habitat loss and climate change are among the reasons why.
Now, work is underway to protect our remaining dormice, and find ways to increase their numbers.
Malcolm Shaw spoke to ecologist Petra Billings, and Mark Monk-Terry of the Sussex Wildlife Trust.
Finally if you're having trouble waking up, spare a moment's thought for this snoozy dormouse.
He's being cared-for by East Sussex Wildlife Rescue after being woken from hibernation by a cat.
It's hoped he'll make a full recovery.
Malcolm Shaw has been to Sussex to take part in a Dormice survey to see how the tiny creatures are faring across the South. Following the floods, the survey found that the dormice moved from where they usually hibernate on the ground to nesting boxes - safe away from floodwater.
Dormice have been found hibernating in a nesting box in Sussex - where they were taking shelter following recent floods.
Dormice have been found hibernating in a nesting box in Sussex - where they are thought to have taken shelter after recent floods.
Dormice generally live across the South and hibernate on the ground or in hedgerows so it is especially unusual that they are hiding in nesting boxes.
Two tiny dormice, which were found abandoned in a flowerpot, are being nursed back to health by carers at the Wildwood Trust near Canterbury.
The endangered animals are being fed a milk formula by hand every two hours and are slowly being weaned onto solid food. David Johns has been to see how they're getting on; he spoke to animal keeper Judi Dunn, and Wildwood's Chief Executive Peter Smith.
Four tiny baby dormice discovered in a pot plant purchased from a garden centre are battling for survival at a wildlife park in Kent.
The tiny babies were taken to the Fur & Feather Wildlife Trust in Folkestone and experts are now mounting a 24 hour vigil.
Unfortunate two of the babies did not make it, showing just how their tiny lives hang on a knife edge.
A group of baby dormice were discovered in a plant pot bought from a garden centre in Kent.
The mice were taken to the Fur and Feather Wildlife Trust in Folkestone and mounted a 24 hour vigil.
Two of the babies did not survive but the two that remain are healthy and safe in the care of the Wildlife Trust conservation.
The Wildwood dormouse rescue centre is the biggest of its kind in the UK and the Canterbury based charity is helping to strengthen dormouse breeding.
Hazel Ryan, Wildwood’s Senior Conservation Officer said, "The hazel dormouse is now classed as extremely vulnerable to extinction but through projects such as this, Wildwood hopes to tip the balance back in favour of the dormouse.”