crawl in
(to something) 1. Lit. to enter a place crawling or creeping. The cat crawled into the room and meowed. The baby crawled in and tried to stand up.
2. Fig. to dress quickly in some kind of clothing. I crawled into my pants and threw on a shirt. He finally found his pants and crawled in.
3. Fig. to get into bed. At about ten o'clock, she crawled into bed. She pulled back the covers and crawled in.