In reply to JimLondon:
There's a kitchen with good stoves but hardly cutlery/ pots at the Refuge du Toubkal. Best thing is to use the kitchen (you pay a nominal fee for gas) but take your own pots, pans and food. Take wayfarer boil-in-the-bags and supplement them with bread and fresh fruit/ veg which you can buy in Imlil.
Either take a light-weight summer sleeping bag, or take a sheet sleeping bag and hire a blanket at the hut, it'll probably be a little bit too cool at night for sheets alone. It's no problem to hire blankets as they have loads of them for winter.
The climbs from the Refuge du Toubkal are less interesting in summer than winter, but they're still well worth the effort. It'll be hot in the still air of the valley on the walk up to the refuge...but above about 3000m's it'll be cool enough.
If you're planning on carrying 3 or 4 days worth of supplies, it would be a good idea to hire a mule at Imlil to carry it all up to the hut, rather then stagger up 1400m of ascent with big packs in 30 + deg c.