To get someone into bed means to persuade them to have sex with you.
PHR-RECIP
和…上床;和…发生性关系
To go to bed with someone means to have sex with them.
PHRASE
正在和…性交
If you say that someone is in bed with someone else, you mean that they are having sex in bed.
PHRASE
在做爱方面;就床上功夫而言
If you say that someone is good in bed, you mean that they are a skilful lover.
PHRASE
自作自受;自食其果
If you say that someone has made their bed and must lie in it, you mean that since they have chosen to do a particular thing, they must now accept the unpleasant results of their action.
PHRASE
铺床
When you make the bed, you neatly arrange the sheets and covers of a bed so that it is ready to sleep in.
PHRASE
自打起床心情就不好
If you say that someone got out of bed on the wrong side, you mean that they have been bad-tempered ever since they woke up that morning.