tiergain
Baby milestone bundles that lift Shopify AOV in 2026
Parents buy in stages: newborn, 3-month, 6-month, 12-month. Each milestone is a bundle opportunity. Single onesies at $18 or milestone kits at $72.
$18
Average single baby item order
$72
Average milestone bundle order
4x
Items per milestone bundle vs single purchase
Parents know their baby will grow. Milestone bundles package what they need next into a single, tiered purchase that lifts AOV and cuts repeat acquisition cost.
The hacks
Newborn essentials kit with tiered sizing upgrades
A "First 90 Days Kit" with onesies, swaddles, and bibs in sizes 0-3M. Tier 1: basics. Tier 2: add sleep sacks + free shipping. Tier 3: add milestone cards + free gift. Parents buy the tier, not the item.
Growth-stage bundles: "Your baby at 6 months" kits
Each growth stage has predictable needs. "6-Month Explorer Kit" with teethers, sippy cups, and textured toys. Parents trust the curation. The bundle replaces 4 separate shopping trips with one $65 order.
Size-up subscription bundles that prevent churn
Parents subscribe to receive the next size up automatically. Each shipment is a pre-built bundle for the next stage. No decision fatigue. No missed sizes. Tiergain builds the initial bundle. The subscription app handles recurrence.
Gift registry bundles with tiered pricing for baby showers
Instead of a registry of 30 individual items, offer 5 milestone bundles on the registry. Guests buy a complete kit ("3-Month Bundle - $68") instead of a single bib ($12). Each guest spends more. The parent gets organized collections.
Photo-op milestone bundles with free printable cards
Add a free milestone photo card set to every bundle over $50. Cost: $0 (digital printable). Perceived value: $15. Parents post these photos on Instagram. Free marketing. The card set is the free gift tier that triggers the larger bundle purchase.
Sibling matching bundles that double the order
"Match your kids" bundles with coordinated outfits for baby + toddler sibling. Parents with two kids under 4 buy double. The matching concept is the upsell trigger. The bundle discount makes it feel like a deal.
Name bundles by milestone, not by product
"6-Month Explorer Kit" converts better than "Teether + Sippy Cup + Toy Bundle." Parents think in milestones. Your bundles should too.