Snooze Gas

The gaseous substance released from a cat upon your lap. This will usually cause one to fall asleep, hence the name.
(Past tense verb: “snooze gassed.”)
(Alternatively, a cat can be a “snooze gasser.”)

1. He fell asleep when Sprinkles hopped up in his lap and gave him the snooze gas.
2. She’s been sleeping there all day ever since Mittens snooze gassed her.
3. Petunia is a huge snooze gasser. She’ll sit in my lap at 5pm and I’ll fall asleep til 7am.