这就是个阶段吧，过阵子学会自己接觉就可以了。建议看看这个https://www.babysleepscience.com/single-post/2017/03/20/nap-101-post-1-does-my-baby-have-a-nap-problem From about 3.5–4 months until 5.5–6 months, single-sleep-cycle naps are normal. At this age, doing a big intervention to teach your baby to sleep might not lead to extended sleep at all. You may successfully teach your baby to fall asleep on his or her own, but you may not be able to get him/her to put sleep cycles together consistently. For this reason it is generally not worth doing a strict intervention during this age range.
From about 3.5–4 months until 5.5–6 months, single-sleep-cycle naps are normal. At this age, doing a big intervention to teach your baby to sleep might not lead to extended sleep at all. You may successfully teach your baby to fall asleep on his or her own, but you may not be able to get him/her to put sleep cycles together consistently. For this reason it is generally not worth doing a strict intervention during this age range.