At this age, waking up crying is something they do. They are usually wet from the nap or hungry after a sleep. Make sure that he stays very comfortable at nap time, warm and dry. This will help.
Also if you can arrange the schedules so that you can wake him before he wakes himself, this will help with your daughter joining in with the crying
Most likely without waking him, before the cycle starts, this will continue. This is very normal. After 15 years of watching babies this age wake up, some just cry. They do not know where they are at for a moment, or are just uncomfortable.
I know that with twins, it is easier for them to nap together, but if the main concern is the daughter becoming upset, you could try separate areas for nap.
Also try a light snack before bedtime.
I hope that this helps, this is a tough one. I hope that one of these suggestions help you with this.
Thank you for choosing JA
hello, I did not know this was you, hello!
Nice to hear it is normal. Thanks for your advice!