A little help please to find some episodes

Hello, so i remember i saw when i was 10-11 years old a couple of episodes and honestly i don't even remember if they were from Twilight Zone or another similar series but i really want to find them and i would really appreciate if you could give me a helping hand.

First episode: It's a doomsday scenario, nuclear missles i think are being launched and the earth is burnt to ashes. Only living beings are two guys in a nuclear shelter and at the end only one of them survives and a monster from outside is trying to persuade him to go outside telling him something like "..there's no hurry, we have a eternity".

2nd episode: It's about a man who plays saxophone if i remember correctly or anyway some kind of musical instrument. When he falls asleep his wife finds him with his mouth wide open and with a beam of light coming from it, and a saxophone sound coming from inside of him.

3rd episode: A girl invites a guy wich recently met at her place. The guy is enthusiast expecting a night full of action. When he makes himself confortable on the bed , the bed opens it's mouth and eats him turning out that the bed was some kind of monster.

That's all i can remember about these three episodes, anyone know from wich series they are and what's their name ? Thank you!