Question:
If after I say krias shema al hamita I remeber I forgot to say borai nefashos for a drink I just took am I allowed to say it after I had already said hampil. Similarly, if I say one perek of tehillim every night and I forgot before I said krias shema and I remember after, am I allowed to say the perek of tehillim?
Answer:
If you have forgotten and have not blessed borai nefashos, you are allowed to bless even after saying the blessing of the Hamapil, and it is also permissible to read a perek of tehillim that you read every day.