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The
for people to sleep could be how hot or cold a
is. Researchers say the best
sleep is in a room between 20-25º Celsius. The
asked 50 people aged 65 and
to wear a sleep
for 18 months. The people's sleep worsened when their room
was not between 20-25ºC. Researchers say 20ºC is the
temperature. They said sleep seems
and is often deeper in a cooler
.
