Questions tagged [sleep]

The tag has no usage guidance.

Filter by
Sorted by
Tagged with
2
votes
1answer
73 views

What biomedical data indicated Apollo astronauts were sleeping?

What particular biomedical data did NASA use to determine if an Apollo astronaut was awake or asleep? From the APOLLO 11 MISSION COMMENTARY, page 72/1 "Our Flight Surgeon reported a short while ago ...
3
votes
0answers
39 views

Astronauts' sleeping heart rate on the ISS

On Earth during non-REM sleep a person's heart rate goes down. Does the same thing happen on the ISS, or does the non-REM sleeping heart rate remain close to the heart rate of the astronaut while ...
91
votes
1answer
17k views

Who was the first human to sleep - perchance to dream - on the Moon?

Incidentally I don't mean "on the lunar surface, asleep laying on the surface of the moon" :) So (A) who (if anyone) was the first human to actually be asleep (that is to say, presumably inside the ...
5
votes
1answer
325 views

What is the procedure for scheduling on the ISS if an astronaut oversleeps?

From the accepted answer to this question there have been times when astronauts have overslept. The morning started disastrously. I slept through two alarms, one set for 0600 and another a half-...
3
votes
0answers
134 views

Do astronauts on the ISS have to consciously keep their arms down?

After seeing many images of astronauts on the ISS sleeping, with their arms floating, and Chris Hadfield describing arms floating up and head titling forward How Do You Sleep In Space? | Video I ...
14
votes
5answers
7k views

What are the benefits of cryosleep?

NASA is working on a so-called 'Cryosleep Chamber', but why do they need it so badly? There must be a lot of benefits attached to this technology..
39
votes
10answers
8k views

Why isn't a centrifuge used for astronauts on the space station?

One thing I've always wondered is why don't astronauts sleep in a kind of rotating bed that spins creating force? This would allow them to sleep and would be able to simulate earths gravity. Why don't ...
1
vote
1answer
1k views

Where do the crew sleep on the ISS? Where are the sleeping quarters?

The ISS currently handles a crew of 6 launched by two Soyuz vehicles. With the advent of Commercial Crew bring 4 a mission, the hope is to run a crew of 7. Where in the ISS do the crew sleep? The ...
15
votes
1answer
2k views

How do astronauts and cosmonauts sleep on a Soyuz?

Recently I learned that the Soyuz crew ship can take up to three days to reach ISS. I know that most of the time the travel takes only about 6 hours, but still: In case something happens, you have to ...
7
votes
2answers
2k views

How do astronauts sleep in zero G?

Perhaps this is a strange question but I've always wondered how astronauts, particularly those aboard the ISS, sleep in zero G. Do they just hang out in "space" or do they have beds they strap ...
19
votes
2answers
2k views

Do you need a mattress on the Moon?

In the 1985 work 'The Cat Who Walks Through Walls' by Robert Heinlein, Richard Ames makes the following internal observation; The character is in an underground abode. The accommodations are in a side ...
10
votes
1answer
531 views

Do Astronauts snore when sleeping in Zero G?

I was reading about this new space meal contest it talks about many of the issues creating appetizing meals for Astronauts. It mentions the loss of taste... Astronauts often lose their sense of ...