sleeping
aeronautical sleeping
Weird question, we aren't aliens. Sport, Gaming, Reading, TV oh and eating and sleeping are pretty good too.
The present progressive tense of "sleep" is "is sleeping" or "are sleeping" depending on the subject. For example: "He is sleeping" or "They are sleeping."
A sleeping volcano is known as a dormant volcano
sleeping beauty
sleeping in the corner - the participle is sleeping.
Most sports are very physically demanding, therefore, you have to take care of your body in every possible way to effectively play your sport. Sleep is a very important part of taking care of your body, therefore, more sleep better performance, less sleep, poorer performance.
The past progressive tense of the verb "sleep" is "was sleeping" or "were sleeping," depending on the subject.
Somniphobia is the fear of sleeping.
Personally, I wake up after sleeping.
"I was sleeping" or "I slept".