you'd better stay in ( )for a day ( ) two.空格里怎么填?

you'd better stay in ( )for a day ( ) two.空格里怎么填?
you'd better stay in ( )for a day ( ) two.
空格里怎么填?

you'd better stay in ( )for a day ( ) two.空格里怎么填?
Bed/or前面说某人生病了,后说“你最好躺在床上休息一两天”