A word a day

 cosy (or cozy) - adjective (cosier, cosiest; cozier, coziest)

1. (of small spaces) comfortable and warm
A cosy little room or apartment
A cosy armchair

2. (of a relationship or conversation) intimate, friendly and relaxed
A cosy chat
A cosy dinner with the whole family 
A cosy evening in front of the fireplace

3. convenient
A cosy arrangement
A cosy deal

Where do you feel cosy? Do you feel cosy in your room?
The singer in the next song feels cosy in a rocket! Actually, the lyrics about the rocket come from Ted Hughes (1930 – 1998), English poet and children's book writer, from his poem Crow and Mama, where a little crow’s actions result in harming his mother; then he gets in a rocket and crashes on the moon:
... ... ...
He jumped into the rocket ...

And it was cosy in the rocket, he could not see much 

But he peered out through the portholes at Creation 

And saw the stars millions of miles away 

And saw the future and the universe 

Opening and opening 

And kept on and slept and at last 

Crashed on the moon awoke...

But I' ve said a lot. Enjoy the song!