The Stack
Two products. One slow-release protein for muscle, one specialized protein for connective tissue.
24g of slow-release casein per scoop. Forms a gel in the stomach and releases amino acids over six to eight hours, exactly the duration of a typical night's sleep.
See live price →18g of bioavailable collagen per scoop. Connective tissue, tendon, and joint repair happens during sleep, when growth hormone is highest.
See live price →Why This Combo
Overnight is a long fast. The right pre-bed nutrition supports recovery in ways post-workout shakes don't.
- Casein is purpose-built for sleep. Studies (Res et al, 2012) show 40g of casein before bed measurably increases overnight muscle protein synthesis without disrupting sleep.
- Collagen targets the soft tissue your muscles attach to. Tendons and ligaments recover slower than muscle. Adding 15 to 18g of collagen pre-bed gives your body the specific amino acids (glycine, proline) needed for connective tissue.
- Together they cover skeletal and connective tissue overnight. Whey doesn't do either job particularly well for an 8-hour sleep, which is why casein and collagen are the right tools here.
Total Monthly Cost
Math based on daily use (30 servings/month of each):
| Casein: Gold Standard 100% Casein (30 servings/mo) | $28.30/mo |
| Collagen: Collagen Peptides (30 servings/mo) | $21.42/mo |
| Total monthly cost | $49.71 |
That's about $50/month for full overnight recovery support. The most expensive thing this stack does is replace 60 minutes of REM sleep you'd have lost to overnight muscle breakdown otherwise.
How to Use Each
ON Gold Standard Casein (30 to 60 min before bed)
One scoop in 8 oz milk or oat milk. Don't drink it within 30 minutes of trying to fall asleep flat; casein takes longer to digest than whey and a full stomach can disrupt sleep quality. Aim for the 30 to 60-minute window pre-bed.
Vital Proteins Collagen Peptides (mix with the casein)
Stir one to two scoops into your casein shake. Collagen is unflavored and adds zero texture issues to casein. If you prefer separation, take collagen in a small cup of warm water 15 minutes before the casein shake.
Cheaper Alternatives
- Swap ON Casein for MyProtein Slow-Release Casein at $39.99/5.5 lb. Roughly 30% cheaper per serving, same micellar form.
- Swap Vital Proteins for Sports Research Collagen at $29.99/1 lb at Costco.
- Drop the collagen entirely. If joints aren't your priority, the casein alone covers 80% of the overnight muscle recovery work.
Upgrade Path
- Upgrade casein to Naked Casein for single-ingredient unflavored micellar casein from grass-fed cows.
- Upgrade collagen to Thorne Collagen Plus which adds vitamin C (cofactor for collagen synthesis) and is NSF Certified for Sport.
See every casein product in our catalog
Browse all 10 tracked casein options with live pricing.
Browse casein protein →Frequently Asked Questions
Yes, with caveats. Multiple studies (Res 2012, Snijders 2015) show 40g of casein before sleep increases overnight muscle protein synthesis by around 22% vs placebo. The effect is modest in absolute terms but consistent and well-tolerated.
Cottage cheese works. A cup of cottage cheese gives you around 25g of casein protein, almost identical to a scoop of micellar casein powder. The downsides are flavor monotony, dairy fat content (around 5g/cup full-fat), and prep effort. Casein powder is just a more convenient delivery system.
No, in research and in practice. Casein doesn't contain stimulants or excessive carbs. The main rule is drink it 30 to 60 minutes before bed, not 5 minutes. A full stomach lying flat is the disruption, not the casein itself.
Yes. Many lifters take collagen 60 minutes pre-workout (paired with vitamin C) for tendon-targeted training days. Morning coffee is also a popular use. Bedtime works because connective tissue repair peaks with growth hormone during deep sleep.
For tendon-loading recovery, pre-workout is slightly better. For connective tissue maintenance, bedtime aligns with deep-sleep growth hormone peaks. Both windows work; daily timing consistency matters more than picking the "perfect" hour.
Casein still works in a cut: 24g protein for around 120 calories is a very lean macros profile. Collagen is even leaner at 70 calories per scoop. Both fit cleanly into a deficit.