I sleep single in the V-berth, the starboard side has a length of almost 7'. I am 6'1" and find it extremely comfortable,, not even necessary to put in the 1st insert, much less the 2nd insert. However, the port side is very short due to the locker, and I have never slept two up there. Not sure it would be possible. All of Tally Ho's other comments I concur.
The aft cabin is spacious for one, but probably barely doable for two (and certainly not comfortably). For one person, there is room to have duffle bags and/or storage tubs back there in addition to the person, beside the person. I took out the back foot-wall to access various hoses, and my friend puts his extra luggage back there, way out of the way.
The center dinette, the foot-well fill cushion is only 1" thick and unsleepable. It looks nice but it is unusable. Also, it is barely long enough for a 6' person. I did buy a mattress topper to cover the whole area, and it was pretty soft, but again I had to sleep catty-corner and it wasn't overly long. I gave up on the idea. Plus, it was a mess in the main living area.
I consider it a great boat for two, (one sleeps in v-berth, and one aft). You can leave your bags in place the whole week. I have entertained three for a few days, by having the third sleep on the port settee (the back of the settee comes off and creates a space half-again as wide, which is good for the persons shoulders. Sleeping head to chart table, with feet forward. But three for more than a few days would get tiresome.
For a 10 day vacation for two people the O'Day 322 is very comfortable. I put many of the dry goods provisions in the footwell of the U-dinette. . Both sit for dinner on the port side of the table. The 322 has many positive attributes, but lots of storage is not one of them......
For TV time - the U-shaped dinette can be covered with the 1" foam in the evening, first person lays in the U-dinnette area. Second person lays on the port settee. I have the TV mounted on port side forward main cabin bulkhead on a swing bracket.
Two different young couples have documented their year-long cruise in the Bahamas on an O'Day 322 (the same O'Day 322, Tanguaray which was later bought by Gary of the Bahamas) , so it is definitely livable for a year for two people. I suspect they had many storage bins in the aft cabin.
While this was eight years ago the blog is still up and running for one of the couples.
Our journey from marriage to homeless, to jobless to living on a 32 foot sailboat as newlyweds to cruising south down the inter-coastal waterway and into the Bahamas and beyond for 1 year...
www.sailingthetanqueray.com