Marriott Rewards MegaBonus – Earn a free night after completing two stays

As expected since the details came out for SPG’s next promotion that
Marriott’s newest offer would also come out on the same day! This
version of MegaBonus sees the awarding of free night certificate to be
used at Category 1-5 hotels when you complete two separate Marriott
stays. Only one certificate can be earned but Marriott states that when
you complete those two stays you can expect an additional offer to be
sent your way 2-3 days after the completion of your 2nd stay.

Offer details

Earn a free night when you complete two stays at any participating
Marriott Hotels & Resorts Worldwide.  Additional bonus offers may be
provided after completing the two stays.  Full details, online registration and booking (Registration is required) Register by Nov 30 for stays Sep 12 – Jan 15, 18

Free stay is valid for 6 months after issuance and is good for Category 1-5 hotels.

Find many more Marriott Rewards bonus offers here.