Sitting beside a person who is reciting the amidah

Hi,

Normally, one may not sit within four amot (about 7 feet) of someone who is reciting the amidah. However, where the person who is reciting the amidah is sitting or reclining - as in the case of someone who is in a hospital bed, or someone who is on an airplane - then if the adjacent person cannot stand, that person may sit.

(Rivivot Ephraim 1:73)

Have a great day,
Mordechai