big eye
hole up
hibernate
lucifugous
SOL
Eleotridae
family Eleotridae
somnorific
one-dog night
somnific
soporiferous
soporific
hypnagogic
somniferous
hypnogogic
sleepfulness
hypnotic
papaverous
hypersomniac
fox sleep
polar night
postsleep
semisomnolence
dormitive
sleptonic
sleeeep
somnetic
enuresis
slumberlike
hypersomnolence
agrypnotic
delayed sleep phase disorder
over
hypnophobia
midnight sun
halfsleep
soporous
somnography
hypersomnia
somnifacient
lunambulism
nightish
slumberous
aestivate
estivate
siesta
jet lag
biphasic sleep
sleep disorder
evening
arousal
agrypnia
wee hours
insomnolent
idiopathic hypersomnia
nocturnalism
nappy
bedstand
knock out
sleep
at rest
hypnogenous
beauty sleep
nap
insonication
sleepy
sleepwise
hypnogenic
night
grogginess
dogsleep
sleepful
standby
photosomnolence
sleep out
eepy
insomnolence
asleep
snoozy
melanopic
nictemeral
somnolence
sleeplike
cold sleeper
pavor nocturnus
coronasomnia
at all hours
sleepbound
sleep terror disorder
clinomania
sack out
sleep dep
microarousal
lie-in

English words for 'Insomnia due to the lengths of the days and nights in the polar regions.'

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