It’s nice that you found what works for you but that doesn’t make it a silver bullet for everyone. I’ve been happily married for nearly 30 years and we’ve always pooled our money and shared a bed. So no, separating sleep and money is not the secret to a good marriage—it’s only the secret to your particular marriage. I do heartily applaud you for figuring out what works for you and for stepping outside “the norm” to do it.