diff --git a/infra/lib/fhir-server-stack.ts b/infra/lib/fhir-server-stack.ts
index 2116312109a..5203654e023 100644
--- a/infra/lib/fhir-server-stack.ts
+++ b/infra/lib/fhir-server-stack.ts
@@ -29,21 +29,58 @@ import { vCPU } from "./shared/fargate";
 import { addDefaultMetricsToTargetGroup } from "./shared/target-group";
 import { isProd, isSandbox, mbToBytes } from "./util";
 
-export function settings() {
+type Settings = {
+  cpu: number;
+  memoryLimitMiB: number;
+  taskCountMin: number;
+  taskCountMax: number;
+  minDBCap: number;
+  maxDBCap: number;
+  /** Causes the duration of each completed statement to be logged if the statement ran for at least the specified amount of time. https://www.postgresql.org/docs/current/runtime-config-logging.html#GUC-LOG-MIN-DURATION-STATEMENT */
+  minSlowLogDurationInMs: number;
+  /** The load balancer idle timeout, in seconds. Can be between 1 and 4000 seconds */
+  maxExecutionTimeout: Duration;
+  listenToPort: number;
+};
+
+export function settings(): Settings {
   const config = getConfig();
-  const isLarge = isProd(config) || isSandbox(config);
-  return {
-    cpu: isLarge ? 2 * vCPU : 1 * vCPU,
-    memoryLimitMiB: isLarge ? 4096 : 2048,
-    taskCountMin: isLarge ? 6 : 1,
-    taskCountMax: isLarge ? 10 : 5,
-    minDBCap: isLarge ? 4 : 1,
-    maxDBCap: isLarge ? 32 : 8,
-    minSlowLogDurationInMs: 600, // https://www.postgresql.org/docs/current/runtime-config-logging.html#GUC-LOG-MIN-DURATION-STATEMENT
-    // The load balancer idle timeout, in seconds. Can be between 1 and 4000 seconds
+  const defaults = {
+    minSlowLogDurationInMs: 600,
     maxExecutionTimeout: Duration.minutes(15),
     listenToPort: 8080,
   };
+  if (isProd(config)) {
+    return {
+      ...defaults,
+      cpu: 2 * vCPU,
+      memoryLimitMiB: 4096,
+      taskCountMin: 6,
+      taskCountMax: 10,
+      minDBCap: 10,
+      maxDBCap: 48,
+    };
+  }
+  if (isSandbox(config)) {
+    return {
+      ...defaults,
+      cpu: 1 * vCPU,
+      memoryLimitMiB: 1024,
+      taskCountMin: 1,
+      taskCountMax: 5,
+      minDBCap: 3,
+      maxDBCap: 12,
+    };
+  }
+  return {
+    ...defaults,
+    cpu: 0.5 * vCPU,
+    memoryLimitMiB: 1024,
+    taskCountMin: 1,
+    taskCountMax: 5,
+    minDBCap: 0.5,
+    maxDBCap: 8,
+  };
 }
 
 interface FHIRServerProps extends StackProps {