My former Ts all had 50 minute sessions. I always felt like I was just getting started when it was time to leave! For 2 years now I have had 90 minute sessions and it is so much better. Of course I'm one of those people who could have a 4 hour session with my T and it wouldn't be enough. But, definitely I feel like I have enough time each week. We need more time for EMDR but even if we don't, filling 90 minutes is not a problem for me!