Here are mattresses we liked for side sleepers, but weren't the best of the bunch. Personal Comfort the Rejuvenate for $4,700 : There's no denying that the cushy, foam-forward feel of this smart bed is great for side sleeping. It gently contours around the hips and shoulders, while the 45 adjustable firmness levels let you make it softer or firmer as needed. Don't expect sleep tracking with the Rejuvenate , as Personal Comfort doesn't offer this with its beds. —Julia Forbes Saatva Rx for $3,449: In cases where side sleepers are dealing with some pretty advanced joint pain, you have to call in reinforcements. Luckily, the Saatva Rx was made for this and helps with gentle cushioning and support. It has specialty therapeutic foams and microcoils, which helped keep my back- and joint-related pain flare-ups to a minimum. — Nena Farrell Puffy Cloud for $1,049: The Puffy Cloud’s all-foam construction offers a softer feel to sleepers, but doesn’t overdo it so that spine alignment’s an afterthought.…