Book 5 of the AdValorem Syndicate Crypto Series. The most expensive activity in a crypto portfolio is not a bad trade. It is the 90 minutes you spend watching a position that was already compounding correctly before you opened the app. Crypto for the Other 9 Hours is the operating manual for professionals who want crypto exposure without crypto becoming a second job. The audience is founders, engineers, doctors, and lawyers — people with day jobs that pay more per hour than active crypto management, who want systematic yield that runs while they work. The book introduces the per-attention-hour return framework: yield divided by hours of monitoring required per year. Across the strategies it covers — stablecoin carry (sUSDS at 4.5%, BUIDL at 5.0–5.2%, Aave V3 USDC), liquid staking and restaking (stETH at 3.2%, rETH, sfrxETH, EtherFi weETH), curated DeFi vaults (Morpho Blue at 6.75–7.4% net, Yearn V3, Pendle PT fixed-rate), and managed concentrated liquidity (Arrakis, Gamma) — the background-yield strategies consistently beat active management on a per-attention-hour basis for professionals with high-value primary work. The book also covers the drip system (Llama Pay, Sablier, Safe modules, Gelato automation for regular capital inflows), the auto-defense layer (rate-limit wallets, approval hygiene, the three-tier alert stack), tax-aware yield design (cross-referenced to Book 3), and the three-axis risk budget: dollar allocation, smart contract risk, and attention cost. The running example — Sarah, a startup CTO with $500K — illustrates every concept from initial allocation through the year-end review. Her portfolio generated 6.2% blended yield in year one. She spent 8 hours managing it.